Tightening means for jordan shell linings



A. LE R. BOLTON TIGHTENING MEANS FOR JORDAN SHELL LININGS June 8 1926. 1,588,297 I Filed Oct. 20 1925 2 %/ENTOR.

My ATTORNEY.

Patented une 8, 1926.

UNITED STATES ARCHER LE ROY BOLTON, OF NORTH ANDQVER, MASSACHUSETTS.

I TIGHTENING MEANS FOR JORDAN SHELL LININGS.

Application filed October 20, 1925. Serial No. 63,776.

This invention relates-to paper making machinery, and particularly to Jordan engines.

Such engines include a conical plug, on

' the outer face of which are bars. which re-' volves inside of'a frustro-conical shell from which project inwardly suitable knives, cooperating with said bars.

' At present the usual method is to-build the filling consisting of knives and separators, which are usually of wood. directly in the permanent shell, but this invention relates to bodily transportable pre-constructed'fillings in which the knives and separators are built up, and which can be bodily inserted in the shell and held in place therein. Usually there are three or mor e of such fillings positioned in each permanent shell, and frequently they are split lengthwise so that when inserted in the permanent shell a fastening wedge may be driven into hold them tightly in place.

There are certain types of such pre-con-- structed filling in which the knives and separators are permanently fixed in position against radial movement, and are also 'so fixileii that they cannot move circumferentia y. i

My present invention however is adapted knives and separators, particularly separators of wood, known as woods, are held together in such a way that they cannot move radially but can move circumferentially. My device can be used however if some of the members, .hether knives or knife separating member's, might move radially except for friction. It may also be usedwhere certain of the members, as those adjoining a split, cannot move circumferentially.

In this type of pre constructed filling, when put together at the machine shop or factory before being shipped to a'paper mill, althoughthe knives and woods may be forced together as much as is wise, on ac count of the wood shrinking and absorbing I the pressure, they will gradually loosen.

My present invention includes one or more wedges which are longer than the woods and knives, and of such size that when thefilling is first formed they are driven in u towards the small end but are left projecting at the large end.

for types of pre-constructed filling in which 7 I have found that if they are driven in i from time to time, as the loosening starts, successive loosenings occur and the process must be continued.

Usually it is only necessary therefore to drive in the wedges just before shipment, and perhaps again just before the filling is 50 inserted in the permanent shell. After the final driving in, the ends are cut oif flush with the ends of the knives and woods.

I will describe several types of pre-con-- structed fillings with which my device is useful. I

In the drawings,- Fig. 1 is an elevation of a split filling in which there is an outer shell of thin tough metal in which the knives. and separators may either interlock or be of keystone shape and cross section.

Fig. 2 is a plan view of a part of the top of Fig. 1, part of the shell being broken away to show the construction.

Fig. 3 is an elevation from the side, partly broken away, of a. slightly different type of thin shell.

Fig. 4 is an enlarged detail somewhat exaggerated for clearness, showing how knives and separators can be held in place from radial displacement, by being made of keystone shape.

Fig. 5 is a. sectional detail showing my device applied to another type of filling.

Fig. 6 is an elevation of the wedge shown in Fig. 5, removed. Fig. 7 is an end view of Fig. p

Fig. 8 is a sectional detail similar to Fig. 5 of a different type of filling.

Fig. 9 is an end view of Fig. 8.

In the drawings, A represents a thin metal shell of. frustro conical form s lit longitudinally at 10, and preferably having along these edges the bent in starting members 11 and-12, the split being held together during shipment by means of' linksL, L, fastened to shell A- by means of bolts 20 and 21.

At the large end, the circular'rim of shell A is bent over at 15 to help hold the knives and separators in place, but at certain points such as 14,14, it is bent out to permit the wedges W, W, to be driven in. These bent over parts 14 can afterwards be bent down in line with 15.

K, K, represent the knives which are of the usual angular construction as shown in Fig. 3, and C, C, represent the wooden separators. The knives K are shown as having on each side longitudinal projecting ribs 31, 31, which'enter grooves 30, 30, in the adjoining woods.

For convenience in driving in a straight wedge I prefer that'the members on each sideshould be straight instead of angular. In Fig. 2 I show special separators F, F, which have on each side longitudinal grooves such as 33, 33, and are of the shape respectively of R, R, in Fig. 3. The outside grooves are angular and fit the ribs 31,-31,

. of the adjoining knives K while the grooves onthe other side are straight and engage the ribs 34, 34, of cut-off knives G which are also straight and have ribs 34 on each, side, the rib on the side next to wedge W entering one of the straight grooves 32, 32, cut in on each side ofwedge W. Y

There may be one or. more of these wedges W. I show in the drawings four wedges, each of which is shown as somewhat longer than the corresponding knives and woods, and of such size that'when the pre-constructed filling is assembled, the large end projects some little distance as shown in Figs. 1 and 3.

In Figs. 1 and 2, the knives and separaters and;other similar members are shown as interlocking in a manner similar to what I have shown in application for patent Serial Number 61,97 3, filed Oct. 12, 1925,by me.

In Fig. 3, instead of using a continuous shell A, I use two wide continuous thin metal belts H and M. r

In this view. the bulk of the knives K and wooden separators C may have ribs and grooves so as to interlock, but the special separators R and R, between which wedges T, T, are driven, are neither ribbed'nor grooved adjoining wedge T nor are any of the wedges T grooved or ribbed. The knives P on eachside of separators R, R, may be cut off in depth as are G, G, and may have a rib on one side but no rib on the side v adjoining special separators R, R.

Some or all of these members P, R, and T may therefore be movable radially, except for friction, as well as circumferentially.

As shown exaggerated in Fig. 4, instead of using ribs and grooves, I may use in connection with a shell A, the knives 52 and woods 51, and also one or more Wedges 50,

' all of which are made of keystone shape in 64 which goes directly in and then extends to the left at 65. Preferably there are two.

and the ends can then be welded together, or

they may be put together in various ways.

Fig. 6 shows the-type of wedge 62 which I can use in connection with this construction. It'has slots 66, 66, corresponding with 64, 64, except that they are wider, and extensions 3; which are also considerably longer than As shown in Fig. 7, I can build up the knives and woods from the inside of such rings, and then tighten them by using my wedge or wedges.

Fig. 8 shows knives 71 and woods 70, both straight instead of bent, through which are the round registering holes 74, 74, through which a round wire 73, similar to 63, passes. p There may. also be strung on these wires the tightening wedges 72 having the long slots 76which permit them to be driven in to tighten the assembled parts.

With this construction it is necessary to have the rings 73 split so that at each end there may be a head 77 or nut 78, as shown in Fig. 9.

I claim:

1. The combination in a bodily removable pre-constructed lining for Jordan engine shells, of a plurality of knives and separating members associated with annular connecting members in such amanner that the knives and separating members cannot move radially, but can move circumferentially; with a tightening wedge driven in between the knives and separating members in such a manner that its large end protrudes therefrom. v v

2. The combination in a bodily removable pie-constructed lining for Jordan engine shells, of a plurality of knives and separating members associated with annular connecting members in such a manner that the knives and separating members cannot move radially, but can move circumferentially; oneeof said separating members being a tightening wedge driven in between the knives and separating members in such a manner that its large end protrudes therefrom.

3. The combination in a bodily removable pre-constructed lining for Jordan engine shells, of a plurality of knife members and separating members associated with annular connecting members in such a manner that the knife members and separating members cannot move radially, but can move circumferentially; one of said members being a tightening wedge driven in between the other members in such a manner that its large end protrudes therefrom.

4. The combination in a bodily removable pre-constructed lining for Jordan engine shells, of a. plurality of knife members and separating members associated with annular connecting members in such a manner that the knife members and separating members can move circumferentially; one of said members being a tightening wedge driven in pre-constructed lining for ,Jordan engine shells, of a plurality of knife members and separating members so held together that some of them can move oircumferentially; one of said members being a tightening Wedge driven in between the other members in such a. manner that its large end protrudes therefrom.

ARCHER LE ROY BOLTON. 

